Black Cat HF Weather Fax

A full featured program that decodes and displays weather fax transmissions transmitted over shortwave radio, available for macOS and Windows.
Invaluable for mariners and others who need up to date weather information even when not connected to the internet.

Tune your shortwave radio to a weather fax transmission and feed the audio into your computer's sound card input, and start receiving and
displaying weather fax images in minutes.

A schedule of worldwide weather fax transmissions is available here:
rfax.pdf